The world (body) is engulfed in sweltering heat. Even after triggering sweat, the body can't be cooled down. Abnormal increased vascular flow, soaring fever... That's right, the body is suffering from heat stroke! Taking advantage of the situation, the Bacillus cereus is rampaging to his heart's content. Reeling from the effects of heat stroke, the usually reliable White Blood Cell (Neutrophil) is suddenly unable to perform... Isn't there any way to save the world from further global warming?